COLDCARD Mk5

Name: COLDCARD Mk5
Brand: COLDCARD
Price: 3999.00 ZAR
Availability: InStock

R3,999.00

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2 year manufacturer warranty

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Coldcard Mk5

The Coldcard Mk5 is a Bitcoin focused hardware signing device designed with a strong emphasis on offline security and self custody. Built by Coinkite, it prioritises maximum isolation of private keys, ensuring they never leave the device and are never exposed to internet connected systems.

Unlike general purpose hardware wallets, the Mk5 is designed exclusively for Bitcoin, reducing attack surfaces by removing multi asset complexity. It uses dual secure element architecture and open source firmware, allowing advanced users to independently verify how the device operates.

With its improved display, refined keypad, and enhanced NFC and USB-C connectivity options, the Mk5 balances usability with strict security principles. It is built for users who prioritise sovereignty, transparency, and air gapped transaction signing.

Security & Protection

Dual secure element architecture for key storage
Private keys generated and stored fully offline
Open source and verifiable firmware
Air gapped transaction signing via MicroSD workflow
PIN protection with advanced anti phishing features
Optional duress and decoy wallet functions
Designed to minimise attack surface through Bitcoin only focus

Design & User Experience

Compact handheld design with durable casing
Improved keypad for precise input
Bright display protected by durable glass
Clear transaction verification on device screen
Designed for secure but functional user interaction

Connectivity & Compatibility

USB-C connection for setup and updates
MicroSD card support for air gapped signing
NFC support for transaction transmission (PushTX)
Works with Bitcoin PSBT workflows
No Bluetooth or WiFi for reduced attack surface

Assets, Functionality & Backup

Bitcoin only support for reduced complexity
Compatible with standard BIP39 recovery phrases
Secure backup via MicroSD and recovery seed
Supports advanced multisig setups
Duress wallets and PIN based security layers
Designed for long term cold storage management

COLDCARD Mk5

Coldcard Mk5

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